Right now
The most recent data we hold from NOAA arrived 7 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 4 July 2026 at 06:00 UTC. It is kept here as a record.
No stronger detection stands among the 76 recorded within 20 km of this point since 16 March 2026 — 47 others scored the same. Another comparable one was recorded here earlier the same day. 27 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 3 at 6:51PM CDT until July 4 at 1:00AM CDT by NWS Paducah KY
Urban PEI: 18,954 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- July 8, 2026 · score 34 · 8.1 km
- July 2, 2026 · score 34 · 14.1 km
How we know
8 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 34 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 34 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 36.5820, -88.3720 |
| Nearest City | Murray (6 km) |
| Urban exposure index (PEI) | 19.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T23:51:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.172715cb29afc54db91bd3effd311fe71a4668f3.001.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-03T23:51:00.000Z.
First archived: 2026-07-04T05:59:49.719Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Calloway, KY |
| Headline | Flash Flood Warning issued July 3 at 6:51PM CDT until July 4 at 1:00AM CDT by NWS Paducah KY |
| Expires | 2026-07-04T01:00:00-05:00 |
| SenderName | NWS Paducah KY |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 1 SE Murray |
| Iem County | Calloway |
| Iem State | KY |
| Iem Wfo | PAH |
| Iem Remark | Business with wind damage on the south side of Murray. Time estimated by radar. |
| MergedSources | [{"id":"iem_H_36.890_-88.680_1783122900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783122900000,"latitude":36.89,"longitude":-88.68},{"id":"iem_F_36.610_-88.300_1783122900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783122900000,"latitude":36.61,"longitude":-88.3},{"id":"iem_O_36.230_-88.820_1783118580000","source":"iem","severity":"low","severityValue":25,"timestamp":1783118580000,"latitude":36.23,"longitude":-88.82},{"id":"iem_D_36.580_-88.400_1783119300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783119300000,"latitude":36.58,"longitude":-88.4},{"id":"iem_D_36.580_-88.570_1783120500000","source":"iem","severity":"low","severityValue":25,"timestamp":1783120500000,"latitude":36.58,"longitude":-88.57},{"id":"iem_H_36.630_-88.310_1783120440000","source":"iem","severity":"low","severityValue":25,"timestamp":1783120440000,"latitude":36.63,"longitude":-88.31},{"id":"iem_D_36.600_-88.310_1783119300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783119300000,"latitude":36.6,"longitude":-88.31}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Review the area, threshold and delivery channel in your account.
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